Just picked this up online as 'working'. It's not. missing at least a 1 amp fuse and a 12AX7. Considering returning it. the transformer says JTM 1995. But, that's not the end of the world if that's all that's been replaced. So, I searched through all the usual places for date coding this thing. But, there's no letter code on the plate...just numbers. And, the model S/A model code for a 50 watt, even though it says 100w right on the same panel (and on the spec panel). There's also cutouts in the chassis for 2 more ???? somethings ??? that I can't find in any other JCM800 pictures Can anyone identify this thing?